/Engine/Source/Runtime/CoreUObject/Public/UObject/Linker.h
Return the full name of theUObjectrepresented by the specified export.
the path name of theUObjectrepresented by the resource at PackageIndex, or the empty string if this is null
[FString](API\Runtime\Core\Containers\FString) GetFullImpExpName ( [FPackageIndex](API\Runtime\CoreUObject\UObject\FPackageIndex) PackageIndex )